low volume oil pump removal???? - Ford Powerstroke Diesel Forum
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Old 01-12-2014, 02:49 PM
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low volume oil pump removal????

How do I remove the inner gear on the low volume oil pump. I see two flats but don't know how to get the end of the crank shaft off. Is there a special puller??
Also how much scoring is acceptable on the engine cover. Pump cover looks good but the inner cover is scored pretty good.
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Old 01-12-2014, 03:07 PM
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It just slides on the shaft a slip fit no tools required.
Generally if you can feel the scratch or hang a nail it's too much. The inner cover is the back side of the pump. Wear their is more critical than the front cover.
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Old 01-12-2014, 03:13 PM
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What I am seeing is two flats on the gear that looks like they don't fit over the end. Is there a spacer on the end of the crank that the pulley bolts to? If so how do I remove it?
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Old 01-12-2014, 03:19 PM
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Maybe I am more senial than I thought I was but I remember nothing holding it on.
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Old 01-12-2014, 03:27 PM
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Now I am stumped???
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Old 01-12-2014, 05:47 PM
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I do remember it being a tight fit and it will sometimes **** a little and jamm it has to come off square to shaft.
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Old 01-12-2014, 05:59 PM
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If you have a new style front main seal it will come equipped with a wear sleeve that is pressed onto the crankshaft when the seal is installed. The oil pump cover and front main seal will easily pull off but the wear sleeve stays pressed on the crank and does not allow the inner gear to be removed without removing the sleeve first.

There is a special wear sleeve remover tool but that shouldn't be entirely necessary. What I would be more worried about is how are you going to get the new seal and sleeve pressed on without the installer tool?
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Old 01-12-2014, 06:00 PM
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If the crank deal had been replaced it likely had a wear sleeve installed with the new seal. That had to come off before the inner gearotor will come off. Special tool of course but you may be able to remove it with a lot of effort

Sent from AutoGuide.com Free App
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Old 01-12-2014, 06:24 PM
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When I replace my gears I had to remove the wear ring that was pressed onto the crankshaft. I used a simple 3 claw puller tool from autozone and it worked like a charm. Be careful not to rest the jaws on the crankshaft while pulling. Keep it on the ring only so you don't scratch the shaft. Parts Puller/Installer | AutoZone.com

Then I used a magnet to pull each gear out. Too easy. Trust me.... Clean the heck out of that area inside and all. Same with the oil pressure spring underneath it. And pack the gears and housing with petroleum jelly. Otherwise the gears will not build any oil pressure. Now the special tool needed to install the wear ring is expensive. You can rent one from freedom racing . com. But I had my own tool out of a 3x3" flat piece of steel plate. It's was 1/4" inch thick. I blacked the harmonic balancer over top of it to mark my 4 bolt holes and 1 dowel pin hole. I drilled out all the holes to the exact size of the bolts to avoid distortion. I added locktite to the ring and lined it up on the shaft. I would turn each bolt 90 degrees in an X pattern. One the home made tool was flush against the shaft. I used the balancer to press the ring on the rest of the way. After it bottoms out remove the balancer to check if the install depth matches the old one. Crank the engine over to ensure it is not leaking oil from the seal. I hear it happens alot. My did not.

Good luck.
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Old 01-12-2014, 06:36 PM
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My bad I was not aware of the wear sleave. Thanks everyone for correcting my error.

Guess that shows how long it has been since I changed a low pressure pump
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